Facebook API
Easily integrate the Facebook APIs with your Rails application. The Facebook API Rails Kit gets up and running on Facebook's OAuth2 API in minutes.
With the sample code provided, you can have a user grant your app access to his Facebook account, and you can post to his wall.
Pricing
The license comes with full source code, and is not limited to a set number of developers, servers, or sites you wish to build.
The license is a one-time fee. You don’t need to pay yearly, per developer, or per server.
By purchasing a license you are agreeing to the license agreement